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which was formed in a mainly meandering uvial environment. The Komurlu Formation that conformably overlies the Susuz Formation was developed in a mainly lacustrine environment. Six channel samples from the Ince seam and 13 channel samples from the Susuz seam exploited in the underground mines around Balkaya were collected and evaluated in this study. The samples show that the Ince and Susuz seams, on an air-dried basis, respectively, average high ash yields (38.9 and 31.2%), high total sulfur contents (3.49 and 2.89%), and relatively high calori c values (3956 and 4775 kcal/kg). The mean random ulminite re ectance (0.54 and 0.56% Rr) and nonagglomerating character imply that these coals are in a subbituminous-A coal rank. The mineral matter of the studied samples is made up of smectite, quartz, pyrite, calcite, feldspar, and traces of illite and gypsum. Petrographic studies show that some of pyrite and all calcites were detected in cleat and fracture in llings.

Quantitative determination of 90 Sr in bilberry, a representative matrix for vegetables and fruits, by Cherenkov counting and modified Eichrom methods is presented. The compatibility of the two methods was checked through the measurement of the BIPM supplementary comparison bilberry sample (CCR(II)-S8). The activity concentration of 90 Sr in bilberry sample was measured as 153 ± 4 and 152 ± 7 Bq kg -1 by Cherenkov counting and modified Eichrom method, respectively which is in good agreement with the reference value, 153 ± 8 Bq kg -1 .

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